40mm or 50mm help

royinidaho

Well-Known Member
Joined
Jan 20, 2004
Messages
8,950
Location
Blackfoot, Idaho
What are the advantages of 50mm over a 40mm? His will be a 3x9, or 4x12. Thanks

There is no short way, that I know of, to fully explain the answer for all conditions.

But. . . if shooting at 3 and 4x (lowest power) the difference won't be noticeable . . . much.

Before sun rise and after sun set and at higher magnifications the difference will be very noticeable and always favor the 50mm if a quality scope.
 

Scot E

Well-Known Member
Joined
Mar 1, 2008
Messages
1,316
Location
SW Idaho
You will get a lot of varying opinions here in part because everybody's eyes are different and also because different power settings affect outcome. But generally speaking, if you compare equal quality glass with them both on the same power you will gain a few more minutes at dusk and dawn. In my experience it is less than 10 minutes and more like 5 or 6 minutes.

The advantage of the 50 comes in if you need high power in the last few minutes of light. Otherwise, there isn't a lot of benefit. There are drawbacks however, like a higher mount (harder for good cheek weld), and heavier scope.

Scot E.
 

Primary

LRH Assistant
Here are some related products that LRH members are talking about. Clicking on a product will take you to LRH’s partner, Primary, where you can find links to LRH discussions about these products.

 
 
Top